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Browser Ext.Felo Inc.

Glarity

Summarize YouTube, search, and any page with ChatGPT — free and ad-free.

Category
Browser Ext.
Pricing
FREEMIUM
Source
Open core
Models
Multi-model
Verified
Jun 13, 2026

Open-source browser extension that adds AI summaries and translation across the web: YouTube videos, Google/Bing results, PDFs, emails, and arbitrary pages. Works free and ad-free out of the box, with an option to bring your own model key for heavier use.

Pros & cons

  • Free, ad-free, no account required
  • Summarizes YouTube, search, PDFs, email
  • Chrome, Edge, Firefox, Safari, Opera
  • Open-source on GitHub
  • Summary quality depends on chosen model
  • YouTube summaries need captions
  • Heavy use favors a BYO key

Tags

Further reading

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    Built by Butterfly Effect, the Chinese startup that later launched the viral autonomous agent Manus.

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